Receiver extension tube for a firearm



FIG. 1 shows an isometric view of a receiver extension tube for a firearm according to a first embodiment.

FIG. 2 shows a bottom plan view of a receiver extension tube for a firearm according to the first embodiment.

FIG. 3 shows a top plan view of a receiver extension tube for a firearm according to the first embodiment.

FIG. 4 shows a rear plan view of a receiver extension tube for a firearm according to the first embodiment.

FIG. 5 shows a front plan view of a receiver extension tube for a firearm according to the first embodiment.

FIG. 6 shows a left side plan view of a receiver extension tube for a firearm according to the first embodiment.

FIG. 7 shows a right side plan view of a receiver extension tube for a firearm according to the first embodiment.

FIG. 8 shows an isometric view of an extended receiver extension tube for a firearm according to a second embodiment.

FIG. 9 shows a bottom plan view of an extended receiver extension tube for a firearm according to the second embodiment.

FIG. 10 shows a top plan view of an extended receiver extension tube for a firearm according to the second embodiment.

FIG. 11 shows a rear plan view of an extended receiver extension tube for a firearm according to the second embodiment.

FIG. 12 shows a front plan view of an extended receiver extension tube for a firearm according to the second embodiment.

FIG. 13 shows a left side plan view of an extended receiver extension tube for a firearm according to the second embodiment; and,

FIG. 14 shows a right side plan view of an extended receiver extension tube for a firearm according to the second embodiment. 

CLAIM What is claimed is the ornamental design for a receiver extension tube for a firearm, as shown. 